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42686833 = 77185889
BaseRepresentation
bin1010001011010…
…1100101110001
32222022201022211
42202311211301
541411434313
64122532121
71025555260
oct242654561
988281284
1042686833
1122106282
1212367041
138ac77a7
1459525d7
153b32e3d
hex28b5971

42686833 has 8 divisors (see below), whose sum is σ = 49472640. Its totient is φ = 36072960.

The previous prime is 42686821. The next prime is 42686837. The reversal of 42686833 is 33868624.

42686833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42686833 - 25 = 42686801 is a prime.

It is a super-3 number, since 3×426868333 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42686837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42448 + ... + 43441.

It is an arithmetic number, because the mean of its divisors is an integer number (6184080).

Almost surely, 242686833 is an apocalyptic number.

It is an amenable number.

42686833 is a deficient number, since it is larger than the sum of its proper divisors (6785807).

42686833 is an equidigital number, since it uses as much as digits as its factorization.

42686833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85967.

The product of its digits is 165888, while the sum is 40.

The square root of 42686833 is about 6533.5161283952. The cubic root of 42686833 is about 349.4872300821.

The spelling of 42686833 in words is "forty-two million, six hundred eighty-six thousand, eight hundred thirty-three".

Divisors: 1 7 71 497 85889 601223 6098119 42686833